10020313213021 has 4 divisors (see below), whose sum is σ = 10020866198044. Its totient is φ = 10019760228000.

The previous prime is 10020313212989. The next prime is 10020313213067. The reversal of 10020313213021 is 12031231302001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1715801332996 + 8304511880025 = 1309886^2 + 2881755^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020313213021 - 2⁵ = 10020313212989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10020313213021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020313216021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276465330 + ... + 276501571.

It is an arithmetic number, because the mean of its divisors is an integer number (2505216549511).

Almost surely, 2^{10020313213021} is an apocalyptic number.

It is an amenable number.

10020313213021 is a deficient number, since it is larger than the sum of its proper divisors (552985023).

10020313213021 is an equidigital number, since it uses as much as digits as its factorization.

10020313213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552985022.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10020313213021 its reverse (12031231302001), we get a palindrome (22051544515022).

The spelling of 10020313213021 in words is "ten trillion, twenty billion, three hundred thirteen million, two hundred thirteen thousand, twenty-one".